fix: resolve all cargo clippy warnings

- Fix toml version requirement metadata warning
- Replace clone() with std::slice::from_ref()
- Collapse nested if statements
- Add #[allow(dead_code)] to test utility functions
- Fix unused imports and variables in tests
- Use unwrap_or_else instead of expect with format!

wtismycode-cli/src/commands/init.rs

@@ -19,14 +19,13 @@ fn detect_project_name(root: &str) -> String {
                 in_project = false;
                 continue;
             }
-            if in_project && trimmed.starts_with("name") {
-                if let Some(val) = trimmed.split('=').nth(1) {
+            if in_project && trimmed.starts_with("name")
+                && let Some(val) = trimmed.split('=').nth(1) {
                     let name = val.trim().trim_matches('"').trim_matches('\'');
                     if !name.is_empty() {
                         return name.to_string();
                     }
                 }
-            }
         }
     }